Operating unit for lithotripsy handpiece



FIG. 1 is a perspective view of an operating unit for lithotripsy handpiece, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a cross sectional view thereof, taken along the line 8-8 in FIG. 2;

FIG. 9 is an end view thereof, taken along the line 9-9 in FIG. 2; and,

FIG. 10 is a front view showing the moved knob.

The broken lines showing the remainder thereof are for environmental purposes only and form no part of the claimed design. 

CLAIM The ornamental design for an operating unit for lithotripsy handpiece, as shown and described. 